/* ============================================================
   ADMIN & POS STYLES
   ============================================================ */

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-card: #ffffff;
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* ADMIN TABLES */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  font-size: 14px;
}

.admin-table th {
  background: var(--color-ink);
  color: white;
  padding: 10px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
}

.admin-table td {
  padding: 10px;
  border-bottom: 1px solid var(--color-gray-200);
}

.admin-table tbody tr:hover {
  background-color: var(--color-gray-50);
}

/* ADMIN TABS */
.admin-tab {
  padding: 10px 20px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-gray-500);
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
  margin-bottom: -3px;
}

.admin-tab:hover {
  color: var(--color-ink);
}

.admin-tab.active {
  border-bottom-color: var(--color-brand);
  color: var(--color-brand);
  font-weight: 800;
}

/* ADMIN SECTIONS */
.admin-section.active {
  /* Se mantiene para estado semántico; la visibilidad se controla con la clase `hidden`. */
}

/* POS SPECIFIC */
.pos-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  height: 100%;
  padding: 20px;
}

.pos-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.pos-right {
  display: flex;
  flex-direction: column;
  background: var(--color-pos-bg);
  border-radius: 12px;
  padding: 20px;
  color: var(--color-pos-text);
  position: sticky;
  top: 0;
}

/* POS DISPLAY */
.pos-display {
  background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
  border: 3px solid var(--color-pos-gold);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  margin-bottom: 20px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 215, 0, 0.1);
}

.pos-display-label {
  font-size: 12px;
  color: var(--color-pos-gold);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.pos-display-value {
  font-family: 'Courier New', monospace;
  font-size: 36px;
  font-weight: 800;
  color: var(--color-pos-gold);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
  word-break: break-all;
}

/* POS TICKET */
.pos-ticket {
  flex: 1;
  overflow-y: auto;
  background: white;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--color-gray-200);
  font-size: 13px;
}

.pos-ticket-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: 12px;
  color: var(--color-ink);
}

.pos-ticket-item.header {
  font-weight: 700;
  color: var(--color-brand);
  border-bottom: 2px solid var(--color-brand);
  margin-bottom: 8px;
}

.pos-ticket-empty {
  text-align: center;
  padding: 40px 0;
  color: var(--color-gray-400);
  font-style: italic;
}

/* POS CUSTOMER SELECT */
.pos-customer-select {
  background: white;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
}

.pos-customer-select label {
  display: block;
  font-weight: 700;
  font-size: 12px;
  color: var(--color-pos-text);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pos-customer-select select {
  width: 100%;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 6px;
  padding: 8px;
  font-size: 13px;
  color: var(--color-ink);
}

/* POS TYPE SELECT */
.pos-type-select {
  background: white;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
}

.pos-type-label {
  display: block;
  font-weight: 700;
  font-size: 12px;
  color: var(--color-pos-text);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pos-type-options {
  display: flex;
  gap: 12px;
}

.radio-option {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 2px solid var(--color-gray-200);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  background: white;
}

.radio-option:hover {
  border-color: var(--color-brand);
}

.radio-option input[type="radio"] {
  cursor: pointer;
}

.radio-option input[type="radio"]:checked {
  accent-color: var(--color-brand);
}

.radio-option.checked {
  border-color: var(--color-brand);
  background: rgba(245, 192, 0, 0.05);
}

/* POS BUTTONS */
.pos-buttons {
  display: flex;
  gap: 10px;
}

.pos-buttons .btn {
  flex: 1;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 6px;
}

.pos-btn-process {
  background: var(--color-success);
  color: white;
}

.pos-btn-process:hover {
  background: #059669;
}

.pos-btn-print {
  background: var(--color-brand);
  color: var(--color-ink);
}

.pos-btn-print:hover {
  background: var(--color-brand-dark);
}

.pos-btn-cancel {
  background: var(--color-gray-300);
  color: var(--color-ink);
}

.pos-btn-cancel:hover {
  background: var(--color-gray-400);
}

/* POS ITEMS COUNT */
.pos-items-count {
  text-align: center;
  padding: 8px;
  background: rgba(255, 215, 0, 0.1);
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-pos-gold);
  margin-bottom: 12px;
  border: 1px solid rgba(255, 215, 0, 0.2);
}

/* SEARCH INPUT ADMIN */
.admin-search {
  width: 100%;
  padding: 10px 16px;
  border: 2px solid var(--color-gray-200);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.admin-search:focus {
  outline: none;
  border-color: var(--color-brand);
}

/* PRODUCT LIST */
.admin-prod-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-gray-50);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--color-gray-200);
  gap: 12px;
}

.admin-prod-item-info {
  flex: 1;
  min-width: 0;
}

.admin-prod-item-name {
  font-weight: 700;
  font-size: 13px;
  margin: 0;
  color: var(--color-ink);
}

.admin-prod-item-meta {
  font-size: 11px;
  color: var(--color-gray-500);
  margin: 4px 0 0;
}

.pos-category-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pos-category-btn {
  border: 1px solid var(--color-gray-200);
  background: white;
  color: var(--color-gray-600);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pos-category-btn:hover {
  border-color: var(--color-brand);
  color: var(--color-ink);
}

.pos-category-btn.active {
  background: rgba(245, 192, 0, 0.14);
  border-color: var(--color-brand);
  color: var(--color-ink);
}

/* Product Card Grid for POS */
#admin-prod-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

@media (min-width: 1024px) {
  #admin-prod-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.pos-no-results {
  margin-top: 10px;
  font-size: 12px;
  text-align: center;
  font-weight: 700;
  color: var(--color-gray-500);
}

/* ACTIONS */
.actions {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.action-btn-edit {
  background: var(--color-info);
  color: white;
}

.action-btn-edit:hover {
  background: #2563eb;
}

.action-btn-delete {
  background: var(--color-error);
  color: white;
}

.action-btn-delete:hover {
  background: #dc2626;
}

.action-btn-view {
  background: var(--color-gray-300);
  color: var(--color-ink);
}

.action-btn-view:hover {
  background: var(--color-gray-400);
}

/* STOCK WARNING */
.stock-warning {
  color: var(--color-error);
  font-weight: 700;
}

.stock-ok {
  color: var(--color-success);
  font-weight: 700;
}

/* FILTER BAR */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  padding: 12px;
  background: white;
  border-radius: 8px;
  border: 1px solid var(--color-gray-200);
}

.filter-bar-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.filter-bar-label {
  font-weight: 600;
  font-size: 12px;
  color: var(--color-gray-600);
}

.filter-bar select,
.filter-bar input {
  padding: 6px 10px;
  border: 1px solid var(--color-gray-200);
  border-radius: 4px;
  font-size: 12px;
}

/* ADMIN NAVIGATION (DESKTOP + MOBILE) */
:root {
  --admin-nav-width-expanded: 248px;
  --admin-nav-width-collapsed: 84px;
  --admin-mobile-nav-height: 74px;
}

#nav-admin {
  display: block;
}

.admin-nav-desktop {
  display: none;
}

.admin-nav-mobile {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 55;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  border-top: 1px solid #dbeafe;
  background: rgba(239, 246, 255, 0.98);
  backdrop-filter: blur(8px);
}

.admin-mobile-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 6px 4px;
  border-radius: 10px;
  color: #4b5563;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.admin-mobile-link .admin-nav-icon {
  width: 21px;
  height: 21px;
}

.admin-mobile-label {
  font-size: 11px;
  font-weight: 700;
  line-height: 1.1;
}

.admin-mobile-link.active {
  color: #1d4ed8;
  background: #dbeafe;
}

body.admin-nav-present #view-admin {
  padding-bottom: calc(var(--admin-mobile-nav-height) + env(safe-area-inset-bottom));
}

@media (min-width: 1024px) {
  .admin-nav-mobile {
    display: none;
  }

  .admin-nav-desktop {
    position: fixed;
    top: 92px;
    left: 0;
    bottom: 0;
    z-index: 30;
    display: flex;
    flex-direction: column;
    width: var(--admin-nav-width-expanded);
    padding: 12px 10px;
    border-right: 1px solid #dbeafe;
    background: linear-gradient(180deg, #eff6ff 0%, #dbeafe 100%);
    transition: width 0.24s ease;
    overflow: hidden;
  }

  body.admin-nav-collapsed .admin-nav-desktop {
    width: var(--admin-nav-width-collapsed);
  }

  .admin-nav-desktop-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 8px 10px;
  }

  .admin-nav-title {
    color: #1e3a8a;
    font-weight: 800;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: opacity 0.2s ease;
  }

  .admin-nav-toggle {
    border: 0;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #dbeafe;
    color: #1d4ed8;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
  }

  .admin-nav-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
  }

  body.admin-nav-collapsed .admin-nav-toggle svg {
    transform: rotate(180deg);
  }

  .admin-nav-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: 8px;
  }

  .admin-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 9px 10px;
    border-radius: 10px;
    color: #374151;
    text-decoration: none;
    font-weight: 700;
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .admin-nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: inline-flex;
  }

  .admin-nav-icon svg {
    width: 100%;
    height: 100%;
  }

  .admin-nav-label {
    white-space: nowrap;
    transition: opacity 0.2s ease;
  }

  .admin-nav-link:hover {
    color: #1d4ed8;
    background: #e0e7ff;
  }

  .admin-nav-link.active {
    color: #1d4ed8;
    background: #dbeafe;
  }

  body.admin-nav-present #view-admin {
    margin-left: var(--admin-nav-width-expanded);
    transition: margin-left 0.24s ease;
    padding-bottom: 0;
  }

  body.admin-nav-present.admin-nav-collapsed #view-admin {
    margin-left: var(--admin-nav-width-collapsed);
  }

  body.admin-nav-collapsed .admin-nav-title,
  body.admin-nav-collapsed .admin-nav-label {
    opacity: 0;
    pointer-events: none;
  }

  body.admin-nav-collapsed .admin-nav-link {
    justify-content: center;
  }
}